This has come up a couple times. I can only assume those positing this sentiment have never actually commuted by rail. If they had, they would know it to be absolutely true, trains win 100% of the time.
Why? Because of express routes, mostly. During peak hours, AM and PM routes have more trains running and they serve fewer stations per train. So, when I board at Grand Central headed to Scarsdale, normally the 10th station from GCT, it is actually the first stop. We travel at 45mph, non stop, to the destination. If you think the bus is going to do the same, then you will have to have new Bus Only lanes so they do not stop at lights or traffic. Or road repair. Or accidents. Or big puddles.
Additionally, it is more reliable than driving. We in the Midwest often joked that Chicago had 2 seasons: winter and Road Repair. I’ll bet you can relate to that.
When I commuted into wall str, from either NJ, CT, or NY, I could predict my arrival time at the office within 2 minutes. The trains were on schedules and very rarely deviated. Walking is utterly predictable. Inclement weather may add 30 seconds to a 10 minute walk. It’s obvious once you do it, but I can see how it’s hard to visualize if you haven’t lived it. If you are driving to work, then I’m guessing you factor the unknowns into your departure time. You arrive in a 15 minute window of target. Same on the return trip. Probably factor in weather as well. Heavy rain, add 10 minutes. Snow, add 15.
Now toss in the ability to add or subtract a car to the train at peak times. Can you even do that on roads? Do buses now hitch up trailing buses? I haven’t seen that myself. But I see the semis do that, so I could be wrong on that.
Buses are very flexible for in-city transit. Easy to change routes. Easy to add more buses to the fleet. So compared to transit by personal vehicles, I agree they are more flexible. City planners love them. I understand why and agree. But I thought this discussion was about road expansions and where to invest city moneys. We are trying to choose between adding trains or adding lanes. Not really relevant in that regard.
So in the end trains are both faster and more reliable modes of transit than roads, directly attributable to their flexibility. Until you institute “bus only roads” with no traffic signals, they will always lose.